Full-Stack Engineer & Architect

Hello, I'm CRYPE

Full-Stack Software Engineer & Browser Extension Architect

I specialize in building high-performance web applications, Chrome extensions, and cloud platforms. Currently designing e-commerce modules, AI SaaS integrations, and robust automated test suites.

Work ExperienceProjects Portfolio
CP

Professional Experience

My engineering milestones and career progression.

SA

Software & SaaS Agency

3 yrs 10 mos · Ukraine (Hybrid / On-site)

Full Stack Engineer

Full-time · On-site
Jul 2026 - Present · 1 mo

Architecting and developing core modules for large e-commerce, logistics, and SaaS applications:

  • Logistics Platform (SKzxlop): Engineered delivery options display logic and quote acceptance flows.
  • Cloud SaaS (Clwxpzqber): Implemented balance deduction systems, rechargeable user accounts, and tenant configurations.
  • AI SaaS (juaxkzwprqmvy.ai): Built plans displays, promo modules, and billing configurations.

Frontend Developer

Full-time
Oct 2022 - Jun 2026 · 3 yrs 9 mos

Designed and built rich web applications and developer tools:

  • Migrated legacy web code to TypeScript on flagship platforms (e.g., qrtznwblshpxd.com).
  • Built responsive website interfaces using Django templates, React components, and Bootstrap.
  • Created modular landing page builders featuring dialog components, pricing layouts, and smooth navigation.

QA Engineer

Part-time · Hybrid
Nov 2022 - Present · 3 yrs 9 mos

Orchestrating quality assurance pipelines and load testing:

  • Created automated load-testing scenarios using k6 for multi-SKU scenarios.
  • Maintained and executed E2E test suites ensuring stability across logistics and payment interfaces.

Featured Projects & Products

A collection of Chrome extensions, developer tools, and SaaS integrations.

Chrome ExtensionManifest V3

AliExpress Orders Exporter

A secure Chrome extension parsing and storing purchases locally. Features metrics visualizations, dynamic currency conversions, and automated PDF invoice generation. Supports Google Sheets OAuth2 synchronization.

Next.jsIndexedDBGoogle Sheets API
View landing page
SaaS Logistics

SKzxlop

An international logistics and supply chain optimization portal. Developed secure quote acceptance flows, interactive pricing estimates, and shipping rule validations.

ReactNext.jsNode.jsPostgreSQL
SaaS Ecommerce

Clwxpzqber

A multi-tenant order fulfillment engine. Built dynamic balance deduction logic, client-side rechargeable balance sheets, and custom tenant settings structures.

TypeScriptReactNode.jsPostgreSQL
AI SaaS Platform

juaxkzwprqmvy.ai

A microservices AI headshot generator. Developed frontend checkout promotion logic, dynamic pricing modules, and user usage plan dashboards integrated with Sanity CMS.

ReactNext.jsSanity CMSDocker
Developer Portal

qrtznwblshpxd.com

A developer-centric portal for generating and managing dynamic QR codes. Conducted package upgrades and successfully migrated the frontend microservice to TypeScript.

TypeScriptReactPythonPostgreSQL
Hardware Analytics

li-ion-calculator

A mathematical balancing calculator for custom lithium-ion battery packs. Optimizes cell matching by capacity and internal resistance, calculating busbar layouts and group allocations.

Next.jsTypeScriptTailwind CSSxlsx (SheetJS)Vitest
Microservices App

fiqwzbncxvlksdher

A dockerized financial management application with split services. Configured Nginx reverse proxy routes, implemented secure transaction models, and automated notifications templates.

ReactNode.jsNginxDocker
Linux SysAdmin

dnf-docker-desktop-updater

A CLI package manager helper script for Fedora/RHEL to automate Docker Desktop updates. Includes shell autocompletions and automated system uninstallation options.

BashFedora DNFDocker
Inventory Database

lab-inventory

A local-first laboratory antibody inventory tracking app. Features dynamic inventory usage tracking, report validation routines, and Excel spreadsheet export support.

Next.jsFirebaseTypeScriptxlsx (SheetJS)

Core Skills

Frameworks, systems, databases, and architectures I use in production.

Languages & Runtimes

  • TypeScript / JavaScript (Node.js)
  • Python (Django / Flask)
  • SQL (PostgreSQL / SQLite)
  • Bash / Shell Autocompletions

Frontend Frameworks

  • React & Next.js (App Router)
  • Tailwind CSS v4 & PostCSS
  • Bootstrap & Modern Flexbox/Grids
  • Responsive UI & Glassmorphism

DevOps & Infrastructure

  • Docker & Docker Compose
  • Nginx Reverse Proxies & Gateway Routing
  • Linux Package Managers (DNF / Fedora)
  • Git Workflows & Secrets Scanners

Specialized Integrations

  • Chrome Extension APIs (Manifest V3)
  • Microsoft Office Add-ins (Excel APIs)
  • Google API OAuth2 Verification
  • Sanity CMS & Headless Content Models

QA, Testing & Automation

  • k6 Load & Performance Testing
  • Playwright Browser Scripting & Automation
  • Cypress E2E Testing Frameworks
  • Firebase Test Configs & E2E Scenarios

Data & Balancing Algoritms

  • IndexedDB & Local-First Storage
  • BIP-39 Crypto Seed Mappings
  • Capacity & Resistance Balancers
  • SheetJS & Automated CSV/Excel Exports